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Tomoaki Kawamura
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Packet processing device and packet processing method
Patent number
12,026,113
Issue date
Jul 2, 2024
Nippon Telegraph and Telephone Corporation
Tomoaki Kawamura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Packet processing device and packet processing method
Patent number
12,010,045
Issue date
Jun 11, 2024
Nippon Telegraph and Telephone Corporation
Tomoaki Kawamura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication input-output device
Patent number
11,546,276
Issue date
Jan 3, 2023
Nippon Telegraph and Telephone Corporation
Shoko Oteru
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Network load dispersion device and method
Patent number
11,496,400
Issue date
Nov 8, 2022
Nippon Telegraph and Telephone Corporation
Koji Yamazaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Network load distribution device and method
Patent number
11,451,479
Issue date
Sep 20, 2022
Nippon Telegraph and Telephone Corporation
Saki Hatta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Packet processing device and packet processing method
Patent number
11,321,255
Issue date
May 3, 2022
Nippon Telegraph and Telephone Corporation
Tomoaki Kawamura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
PON system, wireless network system, data transfer method, OLT, and...
Patent number
11,036,871
Issue date
Jun 15, 2021
Nippon Telegraph and Telephone Corporation
Takeshi Sakamoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Station-side apparatus in optical transmission system and optical t...
Patent number
10,397,133
Issue date
Aug 27, 2019
Nippon Telegraph and Telephone Corporation
Saki Hatta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Station-side device and optical transmission system
Patent number
10,193,630
Issue date
Jan 29, 2019
Nippon Telegraph and Telephone Corporation
Shoko Ohteru
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Station-side apparatus in optical transmission system, optical tran...
Patent number
9,954,617
Issue date
Apr 24, 2018
Nippon Telegraph and Telephone Corporation
Kenji Kawai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Station-side apparatus and frame transfer apparatus
Patent number
9,178,616
Issue date
Nov 3, 2015
Nippon Telegraph and Telephone Corporation
Tomoaki Kawamura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
OLT and frame transfer control method
Patent number
9,112,772
Issue date
Aug 18, 2015
Nippon Telegraph and Telephone Corporation
Tomoaki Kawamura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
CDR circuit
Patent number
8,705,680
Issue date
Apr 22, 2014
Nippon Telegraph and Telephone Corporation
Jun Terada
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Contention control circuit
Patent number
5,953,341
Issue date
Sep 14, 1999
Nippon Telegraph & Telephone Corporation
Naoaki Yamanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Packet Processing Device and Packet Processing Method
Publication number
20220182340
Publication date
Jun 9, 2022
Nippon Telegraph and Telephone Corporation
Tomoaki Kawamura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Packet Processing Device and Packet Processing Method
Publication number
20220171725
Publication date
Jun 2, 2022
Nippon Telegraph and Telephone Corporation
Tomoaki Kawamura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Network Load Dispersion Device and Method
Publication number
20210281517
Publication date
Sep 9, 2021
Nippon Telegraph and Telephone Corporation
Koji Yamazaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Network Load Distribution Device and Method
Publication number
20210281516
Publication date
Sep 9, 2021
Nippon Telegraph and Telephone Corporation
Saki Hatta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Communication Input-Output Device
Publication number
20210184993
Publication date
Jun 17, 2021
Nippon Telegraph and Telephone Corporation
Shoko Oteru
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Packet Processing Device and Packet Processing Method
Publication number
20210141751
Publication date
May 13, 2021
Nippon Telegraph and Telephone Corporation
Tomoaki Kawamura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Packet Processing Device and Packet Processing Method
Publication number
20210034559
Publication date
Feb 4, 2021
Nippon Telegraph and Telephone Corporation
Tomoaki Kawamura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
PON SYSTEM, WIRELESS NETWORK SYSTEM, DATA TRANSFER METHOD, OLT, AND...
Publication number
20190213334
Publication date
Jul 11, 2019
Nippon Telegraph and Telephone Corporation
Takeshi SAKAMOTO
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
STATION-SIDE APPARATUS IN OPTICAL TRANSMISSION SYSTEM AND OPTICAL T...
Publication number
20180212897
Publication date
Jul 26, 2018
Nippon Telegraph and Telephone Corporation
Saki HATTA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
STATION-SIDE DEVICE AND OPTICAL TRANSMISSION SYSTEM
Publication number
20180062746
Publication date
Mar 1, 2018
Nippon Telegraph and Telephone Corporation
Shoko OHTERU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Station-Side Apparatus in Optical Transmission System, Optical Tran...
Publication number
20170272167
Publication date
Sep 21, 2017
Nippon Telegraph and Telephone Corporation
Kenji KAWAI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL LINE TERMINAL AND FRAME TRANSFER METHOD
Publication number
20150171965
Publication date
Jun 18, 2015
Nippon Telegraph and Telephone Corporation
Shoko Ohteru
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OLT AND FRAME TRANSFER CONTROL METHOD
Publication number
20140112659
Publication date
Apr 24, 2014
Tomoaki KAWAMURA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
STATION-SIDE APPARATUS AND FRAME TRANSFER APPARATUS
Publication number
20140105602
Publication date
Apr 17, 2014
Nippon Telegraph and Telephone Corporation
Tomoaki Kawamura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CDR circuit
Publication number
20100232558
Publication date
Sep 16, 2010
Jun Terada
H04 - ELECTRIC COMMUNICATION TECHNIQUE